20 Localities of Minerals in Massachusetts. 
large curvature within which the strata have jess curvature: 
to the middle of the rock at F. The length of the stra- 
ta from E beyond Gis more than eight feet, a part only be- 
ing shown on the plate, and the perpendicular depth 
from G to the surface at H exceeds four feet. The strata 
above E Gare much longer. The upper stratum E W can 
be traced more than gore feet southward of the perpen- 
dicular section. Asa of E W and some others of the 
kW 
sed of concentric strata resembling those from D to F. 
Ph have a specimen of one of the curvatures, whose span is 
only nine inches, while the height of segment is three in- 
ches. 
Though the curvatures and tortuosities of many parts of 
this bed of limestone, present dc! curious appearances, I 
have seen none so large i i ar_as that described 
above. er it rese obular masses 
of rock mentioned 7 Bakewell phi Ate am not able 
to say. But it seems to me that the formation of this mass 
is not easily accounted for by either the Wernerian or 
Huttonian hypothesis. May it not be the result of a ten- 
dency to crystallization, rather than the ose of pressure 
from any cause ! 
Williams’ College, Nov. 17th, 1824. . 
Aagt. V.—Notice of several localities of minerals in Massa- 
chusetts, by Rey. Enwarp Hrrcucock. 
Spodumene. 
The mineral described in Vol. VI, p. 225, and more 
particularly Vol. VII, p. 30, of the Journal of Science, 
as white augite, turns out to be Spodumene. It exists, not 
merely j in the locality described in the above references, 
but in varjous other parts of Goshen, especially in the 
northern part, scattered in great abundance in bowlders 
over the surface ; so that there is no danger that the local- 
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